CH10 / AIR TRAFFIC SERVICES Flashcards
A lower limit of a Control Area shall be established at a height above the ground
level or water of not less than:
200 metres
The Approach Control Service is an air traffic control service
provided for the arriving and departing controlled flights
The units providing Air Traffic Services are:
Area Control Center- Flight Information Center- Approach Cotrol OfficeAerodrome
Control Tower and Air Traffic Services reporting office
Air traffic control service is provided for the purpose of:
Preventing collisions between aircraft, between aircraft and obstacles on the
manoeuvring area and expediting and maintaining an orderly flow of air traffic
To perform a VFR flight in airspace classification E
two-way radio communication is not required
Which statement is correct?
The lower limit of a TMA shall be established at a height of at least 700ft AGL
What is the speed limit (IAS) in an airspace class E?
250kt for IFR and VFR up to FL 100
The speed limitation for IFR flights inside ATS airspace classified as c, when
flying below 3050m (10000ft) AMSL, is:
Not applicable
The speed limitation for VFR flights inside ATS airspace classified as C when
flying below 3050m (1000ft) AMSL, is:
250kt IAS
An ATS airspace where IFR and VFR flights are permitted, all flights are subject
to air traffic control service and are separated from each other is classified as
Airspace B
The speed limitation for both IFR flights and VFR flights inside ATS airspace
classified as B, when flying below 3050m (10000ft) AMLS, is:
Not applicable
Air traffic services unit clocks and other time recording devices shall be
checked as necessary to ensure correct time within plus or minus
30 seconds of UTC at all times
The following airspace falls under Kolkata FIR?
VED
The VMC minima for a VFR flight inside an ATS airspace classified as B, is:
8km visibility when at or above 3050m (10000ft) AMSL and clear of clouds
A VFR flight when flying inside an ATS airspace classified as B has to maintain
the following minima of flight visibility and distance from clouds
5km visibility, 1500m horizontal and 300m vertical from clouds
An ATS airspace where IFR and VFR flights are permitted, all flights are subject
to air traffic control service and IFR flights are separated from other IFR flights
and from VFR flights VfR flights are separated from IFR flights and receive
traffic information in respect of other VFR flights, is classified as:
Airspace C
Which condition is requested so that an aerodrome may be considered
controlled?
The aerodrome shall be provided with a Control Tower
An ATS airspace where IFR and VFR flights are permitted and all flights are
subject to air traffic control service. IFR flights are separated from other IFR
flights and receive traffic information in respect of VFR flights. VFR flights
receive traffic information in respect of all other flights, is classified as:
Airspace D
An ATS airspace where IFR and VFR flights are permitted are subject to Air
Traffic Control Service and are separated from other IFR flights. All flights
receive traffic information as far as practical, is classified as
Airspace E
An ATS airspace where IFR and VFR flights are permitted, all participating
IFR flights receive an air traffic advisory service and all flights receive flight
information service if requested, is classified
Airspace F
Which statement regarding approach control service is correct?
If it is anticipated that an aircraft has to hold for 30 minutes or more, an
Expected Approach Time will be transmitted by the most expeditious means to
the aircraft
Which statement regarding aerodrome control service is correct?
An aircraft entering the traffic circuit without permission of ATC, will be cleared
to land if this is desirable
Which statement regarding aerodrome control service is correct?
An aircraft entering the traffic circuit without permission of ATC, will be cleared
to land if this is desirable
Special VFR flights may be authorized to operate locally within a control zone
when the ground visibility is not less than 1500 metres, even when the aircraft
is not equipped with a functioning radio receiver within class:
E airspace
Flight information service shall be provided to all aircraft which are likely to be
affected by the information and which are:
Provided with the air traffic control services and otherwise known to the relevant
air traffic service units
Alerting service shall be provided:
For all controlled flight, to any aircraft known or believed to be subject of
unlawful interference, and ,n so far as practicable to all aircraft having filed a
flight plan or otherwise known to the ATS
The speed limitation for IFR flights inside ATS airspace classified as E when
flying below 3050m (10000ft) AMSL, is:
250kt IAS
Air Traffic Service unit means:
Air Traffic Control units, Flight Information Centers or Air Services reporting
offices
A controlled airspace extending upwards from a specified limit above the earth
is:
Control area
Tirupati aerodrome designator is?
VOTP
Aerodrome traffic is:
All traffic on the manoeuvring area and flying in the vicinity of an aerodrome
Which of the following Annexes to the Chicago convention contains international
standards and recommended practices for air traffic services (ATS)?
Annex 11
An information issued by a meteorological watch office concerning the
occurence or expected occurence of specified en-route weather phenomena
which may affect the safety of low-level aircraft operations and which are
not already included in the forecast issued for low level flights but the flight
information region concerned or sub-area thereof is
An AIRMET information
Regarding Aerodrome Flight Information (AFIS):
It can only supply limited services to the users and under no circumstances
may it supply ATC services
Air Traffic Control service shall be provided to:
To all aerodrome traffic at controlled aerodromes
Flight Information Region (FIR) is an airspace within which the following
services are provided:
Flight Information Service and Alerting Service
Control Area (CTA) is defined as follows:
A controlled airspace extending upwards from a specified limit above the earth
Aerodrome local flying area is to be considered, if ATZ is not notified:
With in 5 NM of ARP up to 3000 feet
An air traffic control unit:
May ask an aircraft to temporarily change its callsign for safety reasons when
there is a risk of confusion between two or more similar callsigns
Required Navigation Performance (RNP) shall be prescribed -by who/ on basis
By states on the basis of regional air navigation agreements
A Control Zone shall extend laterally to at least:
5 nautical miles from the centre of the aerodrome or aerodromes concerned in
the direction from which approaches may be made
G245Z is a designator for:
an ATS Route
An ATS airspace where IFR and VFR are permitted and receive flight information
service if requested, is classified as
Airspace G
Concerning to RNP (Required Navigation Performance) types, the indication
RNP 4, represents a navigation accuracy of
Plus or minus 4 NM on a 95% containment basis
Area Control Centers issue clearances for the purpose of:
Achieving separation between controlled flights
Clearances will be issued by an ATC unit for the purpose of:
Achieving separation between controlled flights
You receive an IFR enroute clearance starting: Clearance expires at 0920. What
does it mean?
If not airborne until 0920, a new clearance has to be issued
ATIS broadcast ( not transmiitted on)
Shall not be transmitted on the voice channel of an ILS
Whenever ATIS is provided, the preparation and dissemination of the ATIS
message shall be the responsibility of
The air traffic services
Whenever ATIS is provided, the broadcast information shall be updated
Immediately a significant change occurs
The ATIS broadcast message should, whenever practicable, not exceed
30 seconds
ATIS broadcast messages containing departure and arrival information should
include cloud cover, when the clouds are:
Below 1500m (5000ft) or below the highest minimum sector altitude, whichever is the greater
When are ATIS broadcasts updated?
Upon receipt of any official weather, regardless of content change or reported
values
Flight Information Service shall be provided to aircraft in order to avoid collision
hazards when operating in airspace classes:
C, D, E, F and G
Flight Information Service provided to flights shall include the provision of
information concerning collision hazards to aircraft operating in airspace
classes:
C to G (inclusive)
At radio communications, “Distress” differs from “Urgency” because in the
first case
There is a serious and imminent danger requiring immediate assistance
The Alerting Service is provided by:
The ATS unit responsible for the aircraft at that moment
The phases related to an aircraft in emergency or believed in emergency are: (phase)
Uncertainty phase, alert phase, distress phase
When an aircraft is experiencing difficulties, triggering of the alert phase is the
responsibility of
Air traffic control and flight information centers
What type of flight is allowed in class A airspace
IFR only
Alert phase is defined as follows:
A situation where an apprehension exists as to the safety of an aircraft and its
occupants
A situation in which apprehension exists as to the safety of an aircraft. To
which emergency phase this situation correspond?
ALERFA
Which of the following signals is a distress signal?
A parachute flare showing a red light
An aircraft is in emergency when:
It is threatened by grave danger and requires immediate assistance
The different emergency phases (in correct order) are:
INCERFA, ALERFA, DETRESFA
Which of the following statements describes the Alert Phase (ALERFA)?
An aircraft which has been cleared to land fails to land within 5 minutes of the
ETA and communication has not been re-established.
DETRESFA is where:
The fuel on board is considered to be exhausted
